If you need to display a page list by taxonomy with thumbnails in WordPress, use this shortcode anywhere in post, page or widget like this [taxonomy_pagelist tax=’places-to-visit’] where ‘places-to-visit’ is taxonomy slug.
You can copy this code in your theme functions.php or add using wp-code plugin as script. Don’t forget to add styles in your theme Appearance > Customize > custom css or include the file styles.css
The code is available from gist:
Hope that helps!